Electric connector
By designing an electrical connector with a single-piece conductive material and elastic parts, the problem of contact density and separable connection in small-scale electrical equipment connections is solved, and a simple and low-cost micro-scale electrical connection is achieved.
Patent Information
- Application Number
- CN202410439978.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-10-16
- Filing Date
- 2024-04-12
- Publication Date
- 2025-04-18
AI Technical Summary
The prior art is difficult to achieve high contact density and simple separable connections in small-scale electrical equipment connections, especially when the scale is below 50 microns, making manufacturing difficult and cost higher.
An electrical connector is designed, including a conductive layer and an insulating cover layer, the connector is made of a single piece of conductive material, with first and second elastic parts through which the contact array is formed, simplifying the manufacturing process and adapting to small scale requirements.
This enables easy achievement of separable electrical connections on smaller scales, reducing manufacturing difficulty and cost while maintaining high-quality electrical connection performance.
Smart Images
Figure CN119852748A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a connector, in particular to an electric connector. Background Art
[0002] Electrical connectors are used to electrically connect two or more electrical devices to each other, and the electrical devices may be as large as computers, routers, test devices, etc., or as small as printed circuit boards, integrated circuits, etc. In addition to achieving electrical connection, in order to meet more diverse usage requirements, it is also necessary to consider the operation of disconnecting the electrical connector from the connected electrical device, and even how to more easily achieve the required multiple disassembly and connection functions.
[0003] Among them, if the connection requirements of small-scale electrical devices are taken into consideration, a modular packaging method is usually used to form a connector to achieve the required functions. The land grid array (LGA) and ball grid array (BGA) are related technologies widely used in the semiconductor industry where small-scale electrical devices are often required. Both have their own advantages and disadvantages. For example, compared with the ball grid array package, the land grid array package can reduce the manufacturing cost because it does not need to be made into a spherical structure. It is usually widely used in computer motherboards and modular chips. The connection devices that can be repeatedly disassembled and plugged in; although the ball grid array package is more difficult to manufacture, it can provide relatively more contacts and is relatively more suitable for permanent fixed connections.
[0004] The development of semiconductor-related industries is advancing by leaps and bounds. The trend of reducing component size, reducing the spacing between components, and increasing the density of contacts has already taken shape. However, if the need for separable electrical connections is considered, the limitations of existing technologies such as planar grid array packaging are more obvious. As mentioned in the previous paragraph, the performance of planar grid array packaging in terms of contact density is obviously inferior to that of ball grid array packaging. Even if the scale is reduced to 250 microns, the difficulty of implementation will increase significantly and it will cost a lot, not to mention the electrical devices with a scale of less than 50 microns that are ubiquitous today. Summary of the invention
[0005] An object of the present invention is to provide an electrical connector which is conducive to achieving a separable electrical connection more easily at a smaller scale.
[0006] The electrical connector of the present invention comprises a conductive layer. The conductive layer comprises a plurality of connectors spaced from each other and arranged in an array. Each of the connectors comprises a base, and a first elastic portion and a second elastic portion extending from the base to opposite sides. The base extends along a plane, and the first elastic portion and the second elastic portion extend from the base along a first direction and a second direction perpendicular to the plane and opposite to each other.
[0007] In the electrical connector of the present invention, each of the connecting members is a single-piece structure made of a single piece of conductive material.
[0008] In the electrical connector of the present invention, the connecting member is composed of a metal layer.
[0009] In the electrical connector of the present invention, the connecting member is a metal spring formed by stamping.
[0010] In the electrical connector of the present invention, the connecting elements of the conductive layer are arranged in a two-dimensional array.
[0011] The electrical connector of the present invention further comprises a first insulating covering layer and a second insulating covering layer, wherein the first insulating covering layer is attached to the first surface of the conductive layer and comprises a plurality of first openings for respectively allowing the first elastic portion of the conductive layer to protrude outward, and the second insulating covering layer is attached to the second surface of the conductive layer and opposite to the first surface in a direction perpendicular to the plane, and comprises a plurality of second openings for respectively allowing the second elastic portion of the conductive layer to protrude outward.
[0012] The electrical connector of the present invention further comprises a first attachment layer and a second attachment layer, wherein the first attachment layer is arranged between the first insulating covering layer and the conductive layer and is used to attach the first insulating covering layer to the conductive layer, and the second attachment layer is arranged between the second insulating covering layer and the conductive layer and is used to attach the second insulating covering layer to the conductive layer.
[0013] In the electrical connector of the present invention, the first opening is aligned with the second opening in a direction perpendicular to the plane.
[0014] The electrical connector of the present invention, wherein the second opening protruding from the second elastic portion of each of the connecting members is adjacent to the second opening aligned with the first opening protruding from the first elastic portion of the adjacent connecting member, and the first elastic portion and the second elastic portion of each of the connecting members respectively protrude from the first opening and the second opening aligned with each other along the center line passing through the base BCPI-240128 Page 3 / 6.
[0015] In the electrical connector of the present invention, the first elastic portion and the second elastic portion of each of the connecting members have the same length.
[0016] The electrical connector of the present invention, wherein the first elastic portion of each of the connecting members is positioned on a first side of the base by being offset from the center line of the base by a first displacement amount, and the second elastic portion is positioned on a second side of the base opposite to the first side by being offset from the center line of the base by a second displacement amount that is opposite to the first displacement amount.
[0017] The electrical connector of the present invention further comprises an attachment layer disposed between the conductive layer and the second insulating cover layer, wherein the base of each of the connecting elements is attached to the attachment layer.
[0018] In the electrical connector of the present invention, the first elastic portion of each of the connecting members extends along the first direction and protrudes from the first insulating cover layer, and the second elastic portion extends along the second direction and protrudes from the second insulating cover layer.
[0019] In the electrical connector of the present invention, the length of the second elastic portion of each of the connecting members is greater than the length of the corresponding first elastic portion.
[0020] In the electrical connector of the present invention, the second opening through which the second elastic portion of each connecting member protrudes is adjacent to the second opening aligned with the first opening through which the first elastic portion of the adjacent connecting member protrudes, and the first elastic portion and the second elastic portion of each connecting member respectively protrude from the first opening and the second opening that are aligned with each other along a center line passing through the base.
[0021] The beneficial effect of the present invention is that the connecting member can be formed by the single-layer structure of the conductive layer, and the characteristics of the first elastic part and the second elastic part extending to opposite sides are utilized. Because the process is relatively simple, even in response to smaller scale requirements, it is also possible to easily match the contacts of the device to be connected, so that the first elastic part and the second elastic part of the connecting member respectively form the required contact arrays on opposite sides, thereby achieving the required micro-scale electrical connection requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 is a perspective exploded view illustrating a first embodiment of the electrical connector of the present invention;
[0023] Figure 2 is a perspective view illustrating the first embodiment after assembly;
[0024] Figure 3 is a top view illustrating a conductive layer of the first embodiment;
[0025] Figure 4 is a three-dimensional diagram illustrating the structure of one of the connecting elements of the conductive layer;
[0026] Figure 5 is a schematic diagram illustrating the relative positions of the connecting member and a first insulating covering layer and a second insulating covering layer of the first embodiment;
[0027] Figure 6 yes Figure 5 A partial enlarged view of the connecting member, illustrating a first elastic portion and a second elastic portion of the connecting member protruding outward;
[0028] Figure 7 is a perspective exploded view illustrating a second embodiment of the electrical connector of the present invention;
[0029] Figure 8 is a perspective view illustrating the second embodiment of the present invention after assembly;
[0030] Fig. 9 is a schematic cross-sectional view illustrating a third embodiment of the electrical connector of the present invention. DETAILED DESCRIPTION
[0031] The present invention is described in detail below with reference to the accompanying drawings and embodiments.
[0032] See also Figure 1 , 2 , is a first embodiment of the electrical connector 10 of the present invention, and the first embodiment comprises a conductive layer 2 having a first surface 21 and a second surface 22 opposite to the first surface 21, a first attachment layer 3 disposed on the first surface 21 of the conductive layer 2, a second attachment layer 4 disposed on the second surface 22 of the conductive layer 2, a first insulating cover layer 5 attached to the first surface 21 of the conductive layer 2 through the first attachment layer 3, and a second insulating cover layer 6 attached to the second surface 22 of the conductive layer 2 through the second attachment layer 4. Specifically, the first attachment layer 3 and the second attachment layer 4 are preferably both made of adhesive, so as to fix the first insulating cover layer 5 and the second insulating cover layer 6 to the conductive layer 2.
[0033] See also Figure 3 and Figure 4 The conductive layer 2 is composed of a conductive metal layer and includes a plurality of connectors 25 spaced apart from each other and arranged in a two-dimensional array. Therefore, each of the connectors 25 is preferably a single-piece structure made of a single piece of conductive material, and specifically, can be stamped to form a bent rod-shaped structure, such as a metal spring with elasticity, by utilizing the elasticity of the metal material itself.
[0034] like Figure 4 As shown, each of the connecting members 25 has a base 26c, and a first elastic portion 26a and a second elastic portion 26b extending from the base 26c to opposite sides. The base 26c extends along a plane P, and the first elastic portion 26a and the second elastic portion 26b extend from the base 26c along a first direction and a second direction perpendicular to the plane P and opposite to each other. Wherein, a first length L1 of the first elastic portion 26a away from the base 26c is the same as a second length L2 of the second elastic portion 26b away from the base 26c. The first elastic portion 26a of each of the connecting members 25 is positioned at a first side of the base 26c by offsetting a first displacement from a center line C of the base 26c, and the second elastic portion 26b is positioned at a second side of the base 26c opposite to the first side by offsetting a second displacement from the center line C of the base 26c in the opposite direction of the first displacement. That is to say, each of the connecting members 25 is roughly in the shape of the letter “S” when viewed from the side while being flush with the base 26 c.
[0035] See also Figure 5 and Figure 6 And cooperate Figure 1 The first insulating cover layer 5 is preferably made of a thin semi-rigid material and includes a plurality of first openings 50 for the first elastic portion 26a of the conductive layer 2 to protrude outwards; the second insulating cover layer 6 is preferably also made of a thin semi-rigid material and includes a plurality of second openings 60 for the second elastic portion 26b of the conductive layer 2 to protrude outwards. Therefore, the first elastic portion 26a of each of the connecting elements 25 extends along the first direction and protrudes outwards from the first insulating cover layer 5; and the second elastic portion 26b extends along the second direction and protrudes outwards from the second insulating cover layer 6. The first openings 50 are aligned with the second openings 60 in a direction perpendicular to the plane. When the first elastic portion 26a and the second elastic portion 26b protrude outwards from the first opening 50 and the second opening 60, respectively, corresponding contact points facing opposite sides can be formed according to the array distribution of the connecting elements 25.
[0036] It is worth mentioning that the second opening 60 protruding from the second elastic portion 26b of each of the connecting members 25 is adjacent to the second opening 60 aligned with the first opening 50 protruding from the first elastic portion 26a of the adjacent connecting member 25, and the first elastic portion 26a and the second elastic portion 26b of each of the connecting members 25 protrude from the first opening 50 and the second opening 60 respectively, which are aligned with each other along a center line passing through the base 26c. In other words, the first elastic portion 26a and the second elastic portion 26b of each of the connecting members 25 are offset from each other along the direction of layer-by-layer stacking and combination. Thus, when the first embodiment is connected to two different devices on opposite sides, the contacts of the two devices that need to be connected correspondingly through the first embodiment do not need to be aligned with each other, but can be configured accordingly according to the connected devices, so as to improve the versatility of the first embodiment.
[0037] In addition, because the first embodiment uses the first elastic portion 26a and the second elastic portion 26b of the connecting member 25 to form a contact point, and when connected to a corresponding device, the elastic restoring force of the metal material of the conductive layer 2 is used, it is beneficial to provide a detachable and reinstallable connection performance, and when the electrical connection is repeatedly formed, the conductive layer 2 will not be damaged, so that a high-quality electrical connection can be maintained.
[0038] See also Figure 7 and Figure 8 , is a second embodiment of the electrical connector 10 of the present invention. The difference between the second embodiment and the first embodiment is that the second embodiment comprises the conductive layer 2, the first insulating cover layer 5, the second insulating cover layer 6, and an attachment layer 7 disposed between the conductive layer 2 and the second insulating cover layer 6. The base 26c of each of the connectors 25 is attached to the attachment layer 7. In other words, the connectors 25 can be pre-positioned on the attachment layer 7, and the first insulating cover layer 5 and the second insulating cover layer 6 are attached to the opposite sides of the attachment layer 7 by forming adhesiveness or bonding force on the opposite surfaces of the attachment layer 7, thereby completing the assembly of the electrical connector 10 of the present invention with a relatively simple structure and relatively simple assembly steps.
[0039] See also Fig. 9, is the third embodiment of the electrical connector 10 of the present invention. In this third embodiment, the length of the second elastic portion 26b of each of the connecting members 25 is greater than the length of the corresponding first elastic portion 26a, that is, the second length L2 is greater than the first length L1. This third embodiment uses the asymmetric length configuration of the first elastic portion 26a and the second elastic portion 26b on both sides, which is more conducive to using a single attachment layer 7 to assemble as in the second embodiment, effectively simplifying the manufacturing process and reducing the relevant manufacturing costs.
Claims
1. An electrical connector, characterized in that: The electrical connector includes a conductive layer, which includes a plurality of connectors spaced apart from each other and arranged in an array. Each of the connectors has a base, and a first elastic portion and a second elastic portion extending from the base to opposite sides, respectively. The base extends along a plane, and the first elastic portion and the second elastic portion extend from the base along a first direction and a second direction perpendicular to the plane and opposite to each other, respectively.
2. The electrical connector according to claim 1, characterized in that: Each of the connectors is a one-piece structure made from a single piece of conductive material.
3. The electrical connector according to claim 1, wherein: The connecting element is composed of a metal layer.
4. The electrical connector according to claim 1, wherein: The connecting piece is a metal spring formed by stamping.
5. The electrical connector according to claim 1, characterized in that: The connecting elements of the conductive layer are arranged in a two-dimensional array.
6. The electrical connector according to claim 1, characterized in that: The electrical connector further comprises: A first insulating cover layer is attached to the first surface of the conductive layer and comprises a plurality of first openings for respectively allowing the first elastic portions of the conductive layer to protrude outward; and The second insulating covering layer is attached to a second surface of the conductive layer and opposite to the first surface along a direction perpendicular to the plane, and includes a plurality of second openings for the second elastic portions of the conductive layer to protrude outwards.
7. The electrical connector according to claim 6, characterized in that: The electrical connector further comprises: a first attachment layer, disposed between the first insulating cover layer and the conductive layer, and used to attach the first insulating cover layer to the conductive layer; and The second attachment layer is disposed between the second isolation cover layer and the conductive layer and is used to attach the second isolation cover layer to the conductive layer.
8. The electrical connector according to claim 6, characterized in that: The first openings are respectively aligned with the second openings in a direction perpendicular to the plane.
9. The electrical connector according to claim 8, characterized in that: The second opening from which the second elastic portion of each connecting member protrudes is adjacent to the second opening aligned with the first opening from which the first elastic portion of the adjacent connecting member protrudes, and the first elastic portion and the second elastic portion of each connecting member respectively protrude from the first opening and the second opening that are aligned with each other along a center line passing through the base.
10. The electrical connector according to claim 1, wherein: The first elastic portion and the second elastic portion of each connecting member have the same length.
11. The electrical connector according to claim 1, characterized in that: The first elastic portion of each connecting member is positioned on a first side of the base by being offset from the center line of the base by a first displacement amount, and the second elastic portion is positioned on a second side of the base opposite to the first side by being offset from the center line of the base by a second displacement amount opposite to the first displacement amount.
12. The electrical connector according to claim 6, characterized in that: The electrical connector further includes an attachment layer disposed between the conductive layer and the second insulating cover layer, wherein a base of each of the connecting elements is attached to the attachment layer.
13. The electrical connector according to claim 12, characterized in that: The first elastic portion of each of the connecting elements extends along the first direction and protrudes from the first insulating cover layer, and the second elastic portion extends along the second direction and protrudes from the second insulating cover layer.
14. The electrical connector according to claim 12, characterized in that: The length of the second elastic portion of each connecting member is greater than the length of the corresponding first elastic portion.
15. The electrical connector according to claim 12, characterized in that: The second opening from which the second elastic portion of each connecting member protrudes is adjacent to the second opening aligned with the first opening from which the first elastic portion of the adjacent connecting member protrudes, and the first elastic portion and the second elastic portion of each connecting member respectively protrude from the first opening and the second opening that are aligned with each other along a center line passing through the base.